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Shock and Vibration
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Shock and Vibration
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2018
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Article
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Tab 3
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Research Article
Bearing Diagnostics of Hydro Power Plants Using Wavelet Packet Transform and a Hidden Markov Model with Orbit Curves
Table 3
SNR comparison.
Harmonic
Frequency [Hz]
SNR before
SNR after
0
0
37.39
317.62
1
3.33
35.68
304.38
3
10
25.99
205.45
6
20
17.77
191.3
8
26.66
15.16
132.9